Vaccine Passports ?

[Confused52]

The latest theory I have seen is that on Endemic Equilibrium. Since one can be re-infected and Delta is very infections because it apparently can spread between nose and throat cells by contact and does not get checked by antibodies because it does not come into contact. That means that you can get it and pass it on but when it spreads away from the upper respiratory tract the antibodies and memory T-cells start working (creating Antibodies)  and severe disease in more likely to be stopped than mild disease. That mechanism means that herd immunity is effectively impossible and the latest plan from Zahawi is to achieve Endemic and controlled status. That means that it keeps on going round but the most vulnerable have top-ups of antibodies and the rest rely on T-cells and mild re-infections. So living with it just like the alpha-type coronaviruses that cause the common cold. In terms of cases that means the number goes up after more mixing and down after less. Even after they vaccinate the 12-15 year olds grandparents should remain cautious. It is those whose immune systems are failing that will suffer most so we can expect life expectancy to fall and it will be vital for care home workers and NHS staff to be top-up jabbed for their patients sake.